Inflammation of the sebaceous glands, characterized by red, flaky skin in the scalp and hairline, is known as what?

Seborrheic dermatitis is an inflammatory condition that specifically affects the sebaceous (oil) glands, leading to symptoms such as red, flaky skin particularly in areas rich in these glands, like the scalp and hairline. This condition is characterized by an overproduction of sebum and often results in scaly patches, redness, and irritation.

While other conditions listed may present with red, flaky skin, they do not specifically involve the sebaceous glands in the same way. Asteatosis refers to dry skin due to a lack of oil and is not associated with inflammation of the sebaceous glands. Eczema, also known as atopic dermatitis, typically involves itchiness and may occur on various parts of the body but is not solely linked to the sebaceous glands. Psoriasis, although it can present with red, scaly patches, is an autoimmune condition characterized by rapid skin cell turnover and does not specifically involve sebaceous gland inflammation.

Thus, the identification of seborrheic dermatitis is accurate, as it directly relates to the inflammation of the sebaceous glands and its specific presentation with red, flaky skin in the described areas.